import * as _m0 from "protobufjs/minimal";
import { Long, isSet, DeepPartial } from "@osmonauts/helpers";

/**
 * A Duration represents a signed, fixed-length span of time represented
 * as a count of seconds and fractions of seconds at nanosecond
 * resolution. It is independent of any calendar and concepts like "day"
 * or "month". It is related to Timestamp in that the difference between
 * two Timestamp values is a Duration and it can be added or subtracted
 * from a Timestamp. Range is approximately +-10,000 years.
 * 
 * # Examples
 * 
 * Example 1: Compute Duration from two Timestamps in pseudo code.
 * 
 * Timestamp start = ...;
 * Timestamp end = ...;
 * Duration duration = ...;
 * 
 * duration.seconds = end.seconds - start.seconds;
 * duration.nanos = end.nanos - start.nanos;
 * 
 * if (duration.seconds < 0 && duration.nanos > 0) {
 * duration.seconds += 1;
 * duration.nanos -= 1000000000;
 * } else if (durations.seconds > 0 && duration.nanos < 0) {
 * duration.seconds -= 1;
 * duration.nanos += 1000000000;
 * }
 * 
 * Example 2: Compute Timestamp from Timestamp + Duration in pseudo code.
 * 
 * Timestamp start = ...;
 * Duration duration = ...;
 * Timestamp end = ...;
 * 
 * end.seconds = start.seconds + duration.seconds;
 * end.nanos = start.nanos + duration.nanos;
 * 
 * if (end.nanos < 0) {
 * end.seconds -= 1;
 * end.nanos += 1000000000;
 * } else if (end.nanos >= 1000000000) {
 * end.seconds += 1;
 * end.nanos -= 1000000000;
 * }
 * 
 * Example 3: Compute Duration from datetime.timedelta in Python.
 * 
 * td = datetime.timedelta(days=3, minutes=10)
 * duration = Duration()
 * duration.FromTimedelta(td)
 * 
 * # JSON Mapping
 * 
 * In JSON format, the Duration type is encoded as a string rather than an
 * object, where the string ends in the suffix "s" (indicating seconds) and
 * is preceded by the number of seconds, with nanoseconds expressed as
 * fractional seconds. For example, 3 seconds with 0 nanoseconds should be
 * encoded in JSON format as "3s", while 3 seconds and 1 nanosecond should
 * be expressed in JSON format as "3.000000001s", and 3 seconds and 1
 * microsecond should be expressed in JSON format as "3.000001s".
 */
export interface Duration {
  /**
   * Signed seconds of the span of time. Must be from -315,576,000,000
   * to +315,576,000,000 inclusive. Note: these bounds are computed from:
   * 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
   */
  seconds: Long;

  /**
   * Signed fractions of a second at nanosecond resolution of the span
   * of time. Durations less than one second are represented with a 0
   * `seconds` field and a positive or negative `nanos` field. For durations
   * of one second or more, a non-zero value for the `nanos` field must be
   * of the same sign as the `seconds` field. Must be from -999,999,999
   * to +999,999,999 inclusive.
   */
  nanos: number;
}

function createBaseDuration(): Duration {
  return {
    seconds: Long.ZERO,
    nanos: 0
  };
}

export const Duration = {
  encode(message: Duration, writer: _m0.Writer = _m0.Writer.create()): _m0.Writer {
    if (!message.seconds.isZero()) {
      writer.uint32(8).int64(message.seconds);
    }

    if (message.nanos !== 0) {
      writer.uint32(16).int32(message.nanos);
    }

    return writer;
  },

  decode(input: _m0.Reader | Uint8Array, length?: number): Duration {
    const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
    let end = length === undefined ? reader.len : reader.pos + length;
    const message = createBaseDuration();

    while (reader.pos < end) {
      const tag = reader.uint32();

      switch (tag >>> 3) {
        case 1:
          message.seconds = (reader.int64() as Long);
          break;

        case 2:
          message.nanos = reader.int32();
          break;

        default:
          reader.skipType(tag & 7);
          break;
      }
    }

    return message;
  },

  fromJSON(object: any): Duration {
    return {
      seconds: isSet(object.seconds) ? Long.fromString(object.seconds) : Long.ZERO,
      nanos: isSet(object.nanos) ? Number(object.nanos) : 0
    };
  },

  toJSON(message: Duration): unknown {
    const obj: any = {};
    message.seconds !== undefined && (obj.seconds = (message.seconds || Long.ZERO).toString());
    message.nanos !== undefined && (obj.nanos = Math.round(message.nanos));
    return obj;
  },

  fromPartial(object: DeepPartial<Duration>): Duration {
    const message = createBaseDuration();
    message.seconds = object.seconds !== undefined && object.seconds !== null ? Long.fromValue(object.seconds) : Long.ZERO;
    message.nanos = object.nanos ?? 0;
    return message;
  }

};